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Keya Paha River

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Length  204 km
Basin area  4,429 km²
Mouth  Niobrara River
Bridges  Lewis Bridge
Basin area  4,429 km²
Source  Todd County, South Dakota
Country  United States of America
Keya Paha River httpsuploadwikimediaorgwikipediacommonsthu

The Keya Paha River (/ˈkɪpəhɔː/ KIP-ə-haw) is a river flowing 127 miles (204 km) through the U.S. states of South Dakota and Nebraska.

Contents

Map of Keya Paha River, United States

The name is derived from the Dakota language ke'-ya pa-ha', meaning "turtle hill", specifically Turtle Butte. The river's name was given to Keya Paha County, Nebraska, through which it flows.

The river originates in Todd County in south central South Dakota, at the confluence of Antelope Creek and Rock Creek near the town of Hidden Timber. It flows in a generally southeasterly direction through Todd and Tripp counties in South Dakota and then through Keya Paha and Boyd counties in Nebraska. It ends at its confluence with the Niobrara River about 7 miles (11 km) west of Butte, Nebraska. The river has a year-round flow, except for winter ice, and has a quality of water better than all other South Dakota rivers.

In 1861, the border between the Nebraska and Dakota territories followed the Keya Paha River from the 43rd parallel to the river's confluence with the Niobrara; it then followed the Niobrara to the Missouri. This situation lasted until 1882, when the boundary was changed to follow the 43rd parallel all the way to the Missouri; the change added portions of Keya Paha and Boyd counties to Nebraska.

DischargeEdit

At a gaging station south of Naper in Boyd County, the river's mean discharge was 138.6 cubic feet per second (3.92 m3/s). The maximum mean annual discharge was 389.4 cubic feet per second (11.03 m3/s), recorded in 1962; the minimum mean annual discharge was 44.5 cubic feet per second (1.26 m3/s), recorded in 1976. The peak flow recorded at that point was 9,280 cubic feet per second (263 m3/s), registered on July 1, 1962. From July 22 to July 30, 1976, the discharge was recorded as zero.

References

Keya Paha River Wikipedia


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